Pressure test leak detection device suitable for steel drum
By designing an automatic alignment structure for pressure testing and leak detection, the problem of low efficiency in manual alignment was solved, and efficient, safe and automated testing of steel drum inflation was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU NAIDUN BARREL IND CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-14
AI Technical Summary
In the current process of pressure testing and leak detection of steel drums, manual alignment of the inflation tube is inefficient, and the lack of an automatic alignment structure leads to equipment damage and affects production efficiency.
Design a pressure testing and leak detection device that includes a test frame, a rotating base plate, a telescopic cylinder, a servo motor, and a stepper motor. The servo motor drives the rotating base plate and the steel barrel to rotate, and the telescopic cylinder and stepper motor are used to achieve automatic alignment of the inflation head with the opening of the steel barrel. The device is then combined with a pressure sensor for detection.
It enables automatic alignment for steel drum inflation detection, improves detection efficiency, avoids equipment damage, and ensures the accuracy and safety of the detection.
Smart Images
Figure CN224122126U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel drum leak detection technology, specifically a pressure testing and leak detection device suitable for steel drums. Background Technology
[0002] Pressure testing and leak detection of steel drums is an important testing method used to ensure the sealing performance and safety of steel drums, especially when storing or transporting dangerous goods. Pressure testing and leak detection is the process of applying a certain pressure to the inside of the steel drum to detect whether there is a leak.
[0003] During the testing process, manual tube insertion is relatively slow. Automatic tube insertion requires aligning the opening at the top of the steel drum with the inflation tube before pressing down. This process often requires manual assistance. In automated production, the lack of an automatic alignment structure will severely reduce work efficiency, and errors in manual alignment can also cause damage to the equipment. Utility Model Content
[0004] The purpose of this invention is to provide a pressure testing and leak detection device suitable for steel drums, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A test frame is included, with a detection groove on the front side and a rear groove on the rear side. A gas storage tank is installed in the rear groove. A rotating base plate is rotatably connected to the bottom of the detection groove. A loading groove is formed on the rotating base plate. A horizontal plate is installed on the upper end of the detection groove via a telescopic cylinder. A top rod and an inflation head are respectively installed on both sides of the horizontal plate. The top rod and inflation head are symmetrically distributed on the horizontal plate. The center of the horizontal plate is perpendicularly aligned with the center of the loading groove. A pressure sensor is installed on the inflation head. The outer side of the upper end of the inflation head is fixed to the gas storage tank via a connecting hose, and a sealing plate is fixed to the outer side of the inflation head.
[0006] Preferably, the upper end of the push rod passes through the horizontal plate and is fixed with an end plate, a connecting spring is fixed between the end plate and the horizontal plate, and a ball bearing is installed at the bottom of the push rod.
[0007] Preferably, the output end of the telescopic cylinder is fixed with a mounting block, the upper center of the horizontal plate is fixed with a rotating sleeve, the bottom of the mounting block is rotatably connected to the rotating sleeve, and a stepper motor that drives the horizontal plate to rotate is fixed inside the mounting block.
[0008] Preferably, a solenoid valve is fixed at the end of the connecting hose near the gas storage tank, and a one-way valve is fixed at the end of the connecting hose near the inflation head.
[0009] Preferably, an outer ring bevel gear is fixed to the outer side of the rotating base plate, a servo motor is fixed to the bottom side wall of the detection groove, and a drive bevel gear that meshes with the outer ring bevel gear is fixed to the output end of the servo motor.
[0010] Preferably, the loading groove has a T-shaped structure and a rubber ring is installed on the inner side, and the side wall of the loading groove has an outward discharge hole that penetrates the rotating base plate.
[0011] Compared with the prior art, the beneficial effects of this utility model are: during the inflation test, the upper opening of the steel barrel can be aligned with the top rod by rotating the steel barrel itself, and then the inflation head can be aligned with the upper opening of the steel barrel by rotating the horizontal plate, so as to achieve the purpose of automatic alignment inflation test and more efficient automatic inflation test. Attached Figure Description
[0012] Figure 1 This is a side cross-sectional view of a pressure testing and leak detection device for steel drums according to this utility model.
[0013] Figure 2 This is a schematic diagram of the front view of a pressure testing and leak detection device for steel drums according to the present invention.
[0014] Figure 3 This utility model relates to a pressure testing and leak detection device suitable for steel drums. Figure 1 Enlarged structural diagram at point A in the middle.
[0015] In the diagram: 1. Test frame; 11. Detection slot; 2. Rotating base plate; 21. Loading slot; 22. Outer discharge hole; 23. Outer ring bevel gear; 24. Servo motor; 3. Telescopic cylinder; 31. Mounting block; 32. Rotating sleeve; 4. Horizontal plate; 5. Top rod; 51. End plate; 52. Connecting spring; 6. Inflation head; 61. Sealing plate; 62. Connecting hose; 63. One-way valve; 64. Solenoid valve; 7. Rear side slot; 71. Air tank. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Please see Figure 1-3This utility model provides a technical solution: it includes a test frame 1, a test groove 11 on the front side of the test frame 1, a rear groove 7 on the rear side of the test frame 1, a gas storage tank 71 installed in the rear groove 7, a rotating base plate 2 rotatably connected to the bottom of the test groove 11, a loading groove 21 on the rotating base plate 2, the loading groove 21 has a T-shaped structure and a rubber ring installed on the inner side, an external discharge hole 22 penetrating the rotating base plate 2 is opened on the side wall of the loading groove 21, and a horizontal plate 4 is installed at the upper end of the test groove 11 through a telescopic cylinder 3. A top rod 5 and an inflation head 6 are respectively installed on both sides of the horizontal plate 4. The top rod 5 and the inflation head 6 are symmetrically distributed on the horizontal plate 4. The center of the horizontal plate 4 is perpendicularly aligned with the center of the loading groove 21. A pressure sensor is installed on the inflation head 6. The upper outer side of the inflation head 6 is fixed to the air tank 71 by a connecting hose 62. A sealing plate 61 is fixed to the outer side of the inflation head 6. A solenoid valve 64 is fixed to the end of the connecting hose 62 near the air tank 71. A one-way valve 63 is fixed to the end of the connecting hose 62 near the inflation head 6.
[0018] An outer ring bevel gear 23 is fixed to the outside of the rotating base plate 2. A servo motor 24 is fixed to the bottom side wall of the detection groove 11. A drive bevel gear that meshes with the outer ring bevel gear 23 is fixed to the output end of the servo motor 24. The rotation of the output end of the servo motor 24 can drive the drive bevel gear to rotate. Then, by using the transmission of the outer ring bevel gear 23, the rotating base plate 2 and the steel barrel can be driven to rotate. The upper end of the push rod 5 passes through the horizontal plate 4 and is fixed with an end plate 51. A connecting spring 52 is fixed between the end plate 51 and the horizontal plate 4. A ball bearing is installed at the bottom of the push rod 5. The ball bearing can make the bottom of the push rod slide better on the upper surface of the steel barrel.
[0019] The output end of the telescopic cylinder 3 is fixed with a mounting block 31, and the center of the upper end of the horizontal plate 4 is fixed with a rotating sleeve 32. The bottom of the mounting block 31 is rotatably connected to the rotating sleeve 32. A stepper motor that drives the horizontal plate 4 to rotate is fixed inside the mounting block 31. The stepper motor is used to drive the horizontal plate 4 to rotate. After rotating 180 degrees, the position of the push rod and the position of the inflation head can be interchanged.
[0020] Working principle: First, connect the entire device to an external power source. Then, insert the bottom of the steel drum into the loading slot 21. The rubber ring keeps the steel drum rotating synchronously with the rotating base plate 2. The rotation of the servo motor 24 drives the drive bevel gear, which in turn drives the rotating base plate 2 and the steel drum to rotate. Then, the telescopic cylinder 3 drives the horizontal plate 4 to press down. At this time, the bottom of the push rod 5 will abut against the upper surface of the steel drum and be pressed upward. As the steel drum rotates, the bottom of the push rod 5 will slide circumferentially on the upper surface of the steel drum. When it slides to align with the upper opening of the steel drum, the connecting spring 52 pulls the push rod 5 downward and inserts it into the opening of the steel drum, preventing the steel drum from holding. Continue rotating while stopping the rotation drive of the steel drum. Then, the horizontal plate 4 is reset vertically, and the horizontal plate 4 is rotated using a stepper motor. After rotating 180 degrees, the inflation head 6 can be aligned with the upper opening of the steel drum. At this time, the horizontal plate 4 is pressed down to insert the inflation head 6 into the opening, and the sealing plate 61 will abut against the outside of the opening to ensure a seal at the opening. Then, the solenoid valve 64 is opened to inflate the steel drum. After the pressure reaches the preset detection value, the pressure is monitored using a pressure sensor to observe whether there is a change in pressure, thereby achieving the detection purpose. During this process, an external discharge hole 22 is opened on the side wall of the loading tank 21 to discharge the leaked gas even if the steel drum leaks, thus avoiding misjudgment.
[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pressure testing and leak detection device suitable for steel drums, comprising a test frame (1), characterized in that: The test frame (1) has a detection slot (11) on the front side and a rear slot (7) on the rear side. A gas storage tank (71) is installed in the rear slot (7). A rotating base plate (2) is rotatably connected to the bottom of the detection slot (11). A loading slot (21) is provided on the rotating base plate (2). A horizontal plate (4) is installed on the upper end of the detection slot (11) through a telescopic cylinder (3). A top rod (5) and an inflation head (6) are installed on both sides of the horizontal plate (4). The top rod (5) and the inflation head (6) are symmetrically distributed on the horizontal plate (4). The center of the horizontal plate (4) is perpendicularly aligned with the center of the loading slot (21). A pressure sensor is installed on the inflation head (6). The outer side of the upper end of the inflation head (6) is fixed to the gas storage tank (71) through a connecting hose (62). A sealing plate (61) is fixed on the outer side of the inflation head (6).
2. The pressure testing and leak detection device for steel drums according to claim 1, characterized in that: The top rod (5) passes through the horizontal plate (4) and is fixed with an end plate (51). A connecting spring (52) is fixed between the end plate (51) and the horizontal plate (4). A ball bearing is installed at the bottom of the top rod (5).
3. The pressure testing and leak detection device for steel drums according to claim 1, characterized in that: The output end of the telescopic cylinder (3) is fixed with a mounting block (31), and the center of the upper end of the horizontal plate (4) is fixed with a rotating sleeve (32). The bottom of the mounting block (31) is rotatably connected inside the rotating sleeve (32), and a stepper motor that drives the horizontal plate (4) to rotate is fixed inside the mounting block (31).
4. The pressure testing and leak detection device for steel drums according to claim 1, characterized in that: A solenoid valve (64) is fixed at one end of the connecting hose (62) near the gas storage tank (71), and a one-way valve (63) is fixed at the other end of the connecting hose (62) near the inflation head (6).
5. A pressure testing and leak detection device for steel drums according to claim 1, characterized in that: An outer ring bevel gear (23) is fixed on the outside of the rotating base plate (2), a servo motor (24) is fixed on the bottom side wall of the detection groove (11), and a drive bevel gear that meshes with the outer ring bevel gear (23) is fixed on the output end of the servo motor (24).
6. A pressure testing and leak detection device for steel drums according to claim 1, characterized in that: The loading groove (21) has a T-shaped structure and a rubber ring is installed on the inner side. The side wall of the loading groove (21) has an external discharge hole (22) that passes through the rotating base plate (2).